You haven't received your license key probably because:
1. The e-mail with the license key may be directly removed to the trash folder due to your e-mail settings, please check it there.
2. You've provided an invalid e-mail address during your purchase.
3. Your e-mail service provider rejects e-mails from unknown senders.
4. You haven't finished your purchase.
Please send your email address and order number to us at firstname.lastname@example.org, we'll help you find it ASAP.